Forms of Energy
This type of energy is found in anything that is moving.
What is kinetic energy?
As a rock falls from a cliff, this type of energy decreases.
What is gravitational potential energy?
To calculate this type of energy, you need an object's mass, height, and gravity.
What is gravitational potential energy?
This measurement tells us the average kinetic energy of particles in a substance.
What is temperature?
In science, this occurs when a force moves an object over a distance in the direction of the force.
What is work?
A stretched rubber band stores this type of energy.
What is elastic potential energy?
When a battery powers a flashlight, chemical energy changes into these forms of energy.
What are electrical and light energy?
A 2 kg ball travels at 3 m/s. This is its kinetic energy.
What is 9 J?
This property tells you how much energy is needed to raise 1 gram of a substance by 1°C.
What is specific heat?
This measurement describes how quickly work is completed.
What is power?
This form of energy is found inside the nucleus of an atom.
What is nuclear energy?
A swinging pendulum has its greatest kinetic energy at this location.
What is the bottom of its swing?
A 5 kg object sits 2 meters above the ground. This is its gravitational potential energy. Use g = 9.8 m/s².
What is 98 J?
A metal spoon gets hot while sitting in a pot of soup. This is the type of heat transfer taking place.
What is conduction?
A student pushes a box with 15 N of force for 4 meters. This is the amount of work done.
What is 60 J?
Sunlight, radio waves, and X-rays are all examples of this type of energy.
What is electromagnetic energy?
When a moving object slows down because of friction, mechanical energy is transferred into these forms.
What are thermal energy and sound?
A 2 kg object has 100 J of kinetic energy. This is how fast it is moving.
What is 10 m/s?
Heating 100 g of water by 5°C requires this much energy. Use c = 4.18 J/g°C.
What is 2,090 J?
A machine does 800 J of work in 20 seconds. This is its power output.
What is 40 W?
An object's total kinetic and potential energy make up this.
What is mechanical energy?
A ball rolls down a hill, speeds up, and eventually stops because of friction. The energy is not destroyed; it is transferred or changed into other forms. This scientific law explains what happened.
What is the law of conservation of energy?
If an object's mass and velocity both double, its kinetic energy becomes this many times greater.
What is 8 times greater?
A 50 g metal sample absorbs 450 J of heat. If its specific heat is 0.90 J/g°C, its temperature increases by this amount.
What is 10°C?
This simple machine uses a grooved wheel and rope to help lift objects.
What is a pulley?